Battery Tender Plus 12V @ 1-25A (PN 021-0128-PDC) User Instructions - Manuel (Page 3)

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WORKING WITH A DEAD BATTERY OR A BATTERY WITH A VERY
LOW VOLTAGE:
If you try to charge a dead battery having a voltage below 3 Volts, the
Battery Tender
® Plus charger will not start. An internal safety circuit
prevents the charger from generating any output voltage unless it senses at
least 3 Volts at the charger output. In this situation, the red light will
continue to flash, indicating that a charge has not been initiated.
NOTE:
If a 12 Volt, Lead-Acid battery has an output voltage of less than 9 volts
when it is at rest, when it is neither being charged nor supplying electrical
current to an external load, there is a good chance that the battery is
defective. As a frame of reference, a fully charged 12-Volt, Lead-Acid
battery will have a rest-state, no-load voltage of approximately 12.9 volts.
A fully discharged 12-Volt, Lead-Acid battery will have a rest-state, no-load
voltage of approximately 11.4 volts. That means that a voltage change of
only 1.5 volts represents the full range of charge 0% to 100% on a 12-Volt,
Lead-Acid battery. Depending on the manufacturer, and the age of the
battery, the specific voltages will vary by a few tenths of a volt, but the 1.5-
volt range will still be a good indicator of the battery charge %.
STATUS INDICATING LIGHTS: If neither light is lit, then the battery is
not properly connected and/or the charger is not plugged into AC
power. The following describes light operation:
< RED LIGHT FLASHING – The red light flashing indicates that the
battery charger has AC power available and that the
microprocessor is functioning properly. If the red light continues to
flash, then either the battery voltage is too low (less than 3 volts) or
the output alligator clips or ring terminals are not connected
correctly.
<
RED LIGHT ON STEADY – Whenever the red light is on steady, a
battery is connected properly and the charger is charging the
battery. The red light will remain on until the charger completes the
charging stage.
< GREEN LIGHT FLASHING –When the green light is flashing, and
the red light is on, the battery is greater than 80% charged and
may be removed from the charger and used if necessary.
Whenever possible, leave the battery on charge until the green
light is solid.
< GREEN LIGHT ON STEADY –When the green light stops flashing
and burns steady, the charge is complete and the battery can be
returned to service if necessary. It can also stay connected to
maintain the battery for an indefinite period of time
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TROUBLESHOOTING CHECK LIST:
1.
CHARGER LIGHTS DO NOT TURN ON:
a.
Check to make sure AC outlet is supplying power by
plugging in a lamp, an appliance, or a voltage meter.
2. THE GREEN LIGHT GOES ON IMMEDIATELY WHEN
CHARGING A DISCHARGED BATTERY:
a.
The battery may be defective, take battery to the
dealer to be tested.
3. CHARGER IS CHARGING BUT THE GREEN LIGHT DOES
NOT GO ON:
a.
The battery may be defective, take battery to the
dealer to be tested.
b. The battery has an excessive current draw, remove
battery from equipment.
4. THE RED LIGHT COMES ON WHEN STORAGE
CHARGING BATTERIES:
a.
The battery may be defective, take battery to the
dealer to be tested.
b. The battery has an excessive current draw, remove
battery from equipment.
• This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety.
• Children should be supervised to ensure that they do not
play with the appliance.